Finding the Fourth Proportional to 10,081.68, 15,118.32 and 4,815.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,081.68 : 15,118.32 = 4,815.84 : x
2. Step 2: Convert to fraction form
   10,081.68/15,118.32 = 4,815.84/x
3. Step 3: Cross multiply
   10,081.68x = 15,118.32 × 4,815.84
4. Step 4: Simplify right side
   10,081.68x = 72,807,410.19
5. Step 5: Solve for x
   x = 72,807,410.19/10,081.68
6. Step 6: Final answer
   x = 7,221.75